Valve.



B. A. GEURINK.

VALVE.

APPLICATION FILED 3111 1223, 1909.

Patented Apr. 26, 1910.

UNITED STATES PATENT OFFICE.

BERNARD A. GEURINK, OF EAST CLEVELAND, OHIO, ASSIGNOR TO THE TRENKAMPSTOVE 8?; MANUFACTURING COMPANY, OF CLEVELAND, OHIO, A CORPORATION OFOHIO.

VALVE.

Specification of Letters Patent.

Patented Apr. 26, 1910.

Application filed September 23, 1909. Serial No. 519,278.

To all whom it may concern:

Be it known that I, BERNARD A. GEURINK, a citizen of the United States,and a resident of East Cleveland, county of Cuyahoga, and State of Ohio,have invented a new and useful Improvement in Valves, of which thefollowing is a specification, the principle of the invention beingherein explained and the best mode in which I have contemplated applyingthat principle, so as to distinguish it from other inventions.

My invention relates to valves, and particularly to valves designed tocontrol the flow of gas to gas burners. This control is most usuallyobtained by the use of the ordinary gas cock, but the disadvantages ofusing a cock for this purpose are serious.

My invention has for its object the provision of a valve to supplant theordinary gas cock, by which the several disadvantages of tdhe prevailingtype of cock may be obviate To the accomplishment of this and relatedends my invention, then, consists of the means hereinafter disclosed andparticularly pointed out in the claims.

The annexed drawing and the following description set forth in detailcertain mechanism embodying the invention, such disclosed meansconstituting, however, but one of various mechanical forms in which theprinciple of the invention may be used.

In said annexed drawing :Figure 1 is a side elevation of my improvedvalve; Fig. 2 is a vertical section through the center of the valve; andFig. 3 is an elevation of the discharge end of the same.

The valve comprises in general a casing A which, as shown, is formed offour radiating arms. Centrally disposed within the casing is a chamberB, and connected with the chamber and extending transversely of thecasing is a passage Z). One of the arms is threaded so that the casingmay be attached thereby to a gas supply, the end of this arm beingprovided with an opening a. Longitudinal passages b and I) connect theopening a with the transverse passage Z). A second longitudinal passage6 is provided in another of the arms, this passage extending outwardlyfrom the central chamber. The arm in which this passage is located isdesigned to receive a cap a, in the outer end of which is an opening 4:This latter arm is provided with a conical projection providing a needlevalve and at thesame time causing the gas to issue in the form of a jet,it being designed that the cap a shall project into the pipe leading tothe burner in the usual manner. Extending transversely through thechamber B and the passage 1) is a valve stem 0. The lower end 0 of thisstem is threaded into the arm a of the easing, and this arm has noopening around or below the threaded portion of the stem. This threadedportion of the stem lies within the casing below the opening of thepassage 6 into the transverse passage 7). The upper portion of the stemhas a closely iitting bearing 0 in one of the arms of the easing, andextends beyond such bearing portion through a nut a which caps thecorresponding arm of the casing, retaining in place the packing ring andwasher. Upon the portion 0 of the stem which extends out side of thecasing is fixed a suitable handle D. Adjacent to the inner side of thenut a through which the stem extends, the stem is provided with anannular shoulder 0 A port b connects the chamber with the transversepassage b. A valve disk E is provided on the stem within the chamber andis adapted, when the stem is in its lowest position, to close the port6".

The operation of the valve is simple, and from this description may bereadily understood. The stem may be rotated by means of the handle, andbecause it is threaded in the casing, such rotation will raise or lowerthe stem, according to the direction of rotation. The disk is sodisposed upon the stem as to close the port through which the inlet andoutlet passages communicate, and seating of the valve limits furtherrotation of thestem. The valve is opened by rotation of the stem in theopposite direction and consequent raising of the valve from its seat.Upward movement of the stem is limited by engagement of the shoulder onthe stem with the washer, the range of vertical movement of the valvebeing equal to about a quarter turn of the handle and stem which is theamount of movement in ordinary gas cocks. It will be seen that the screwportion of the stem lies entirely below any openings in the casing andconsequently leakage around this screw portion, which is so common inthe usual valve, is rendered absolutely impossible. The portion of thestem adjacent to its extension through the casing wall is made to have aclosely fitting bearing in the casing, and es cape of gas therearound isfurther prevented by the packing.

The structural superiority of my improved valve over the gas cockcommonly in use will be readily appreciated and at the same time it willbe equally well understood that my valve is perfectly simple in itsstructure and modeof operation, and may be economically manufactured.

Other modes of applying the principle of my invention may be employedinstead of the one explained, change being made as re gards themechanism herein disclosed, provided the means stated by any of thefollowing claims or the equivalent of such stated means be employed.

I therefore particularly point out and distinctly claim as myinvention 1. A valve, comprising a casing provided with inlet and outletopenings, a chamber in the casing, a transverse passage connected withthe chamber, a rotatable stem extending through the chamber andtransverse passage, one end of the stem being threaded in the casing andthe other end thereof being formed with an enlarged portion having abearing in said casing and forming a shoulder adapted to engage thecasing wall when the stem is raised, a passage connecting the inletopening with the transverse passage intermediate of the chamber and thethreaded portion of the stem, a passage connecting,

. ing through the passage and chamber, one

end of the stem being threaded in the casing and the other end beingformed with an enlarged' portion having a bearing in the easing andforming an annular shoulder, packing surrounding the stern beyond saidshoulder, a washer surrounding the stem below the packing, said shoulderbeing adapted to engage the washer when the stem is raised, a handleattached to the stem exteriorly of the casing, a passage connecting theinlet opening with the transverse passage inter- 'mediate of the chamberand the threaded portion of the stem, a passage connecting the outletopening with the chamber, and a disk provided on the stem and adapted toclose communication between the chamber and the transverse passage.

Signed by me this 18th day of September,

BERNARD A. GEURINIQ Attested:

CHRISTINE E. ARUS, JNo. F. OBERLIN.

